/Engine/Source/Runtime/UMG/Public/Animation/WidgetAnimation.h
Sequences can determine whether they support a particular track type
virtual ETrackSupport IsTrackSupported ( [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< class [UMovieSceneTrack](API\Runtime\MovieScene\UMovieSceneTrack) > InTrackClass ) const